名词
中文翻译：信号枪
同义词：
['beacon', 'flare gun例句：1. The signal gun was used to alert the troops to a potential attack.（信号枪被用来警告军队有潜在的攻击。）']
例句：
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1. The signal gun was used to alert the troops to a potential attack.
信号枪被用来警告军队有潜在的攻击。
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2.The soldiers fired their signal guns to warn the enemy of our approach.
士兵们发射信号枪来警告敌人我们的到来。
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3.The signal gun lit up the night sky, signaling the start of the race.
信号枪点亮了夜空，标志着比赛的开始。